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Strain-controlled criticality governs the nonlinear mechanics of fibre networks

Abstract

Disordered fibrous networks are ubiquitous in nature as major structural components of living cells and tissues. The mechanical stability of networks generally depends on the degree of connectivity: only when the average number of connections between nodes exceeds the isostatic threshold are networks stable1. On increasing the connectivity through this point, such networks undergo a mechanical phase transition from a floppy to a rigid phase. However, even sub-isostatic networks become rigid when subjected to sufficiently large deformations. To study this strain-controlled transition, we perform a combination of computational modelling of fibre networks and experiments on networks of type I collagen fibres, which are crucial for the integrity of biological tissues. We show theoretically that the development of rigidity is characterized by a strain-controlled continuous phase transition with signatures of criticality. Our experiments demonstrate mechanical properties consistent with our model, including the predicted critical exponents. We show that the nonlinear mechanics of collagen networks can be quantitatively captured by the predictions of scaling theory for the strain-controlled critical behaviour over a wide range of network concentrations and strains up to failure of the material.

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Figure 1: At zero strain, networks undergo a continuous transition from floppy to rigid at the isostatic threshold z = zc.
Figure 2: Computationally obtained stiffness of sub-isostatic networks as a function of the applied strain.
Figure 3: Experimentally measured stiffness of collagen networks prepared at different concentrations as a function of the applied strain.
Figure 4: Demonstration of the continuous transition of elasticity in a sub-isostatic network.

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References

  1. Maxwell, J. C. On the calculation of the equilibrium and stiffness of frames. Phil. Mag. 27, 294–299 (1864).

    Article  Google Scholar 

  2. Cates, M. E., Wittmer, J. P., Bouchaud, J. P. & Claudin, P. Jamming, force chains, and fragile matter. Phys. Rev. Lett. 81, 1841–1844 (1998).

    Article  ADS  Google Scholar 

  3. Liu, A. J. & Nagel, S. R. Nonlinear dynamics: jamming is not just cool any more. Nature 396, 21–22 (1998).

    Article  ADS  Google Scholar 

  4. Van Hecke, M. Jamming of soft particles: geometry, mechanics, scaling and isostaticity. J. Phys. Condens. Matter 22, 033101 (2010).

    Article  ADS  Google Scholar 

  5. Thorpe, M. F. Continuous deformations in random networks. J. Non-Cryst. Solids 57, 355–370 (1983).

    Article  ADS  Google Scholar 

  6. Jacobs, D. J. & Thorpe, M. F. Generic rigidity percolation: the pebble game. Phys. Rev. Lett. 75, 4051–4054 (1995).

    Article  ADS  Google Scholar 

  7. Latva-Kokko, M., Mäkinen, J. & Timonen, J. Rigidity transition in two-dimensional random fiber networks. Phys. Rev. E 63, 046113 (2001).

    Article  ADS  Google Scholar 

  8. Olsson, P. & Teitel, S. Critical scaling of shear viscosity at the jamming transition. Phys. Rev. Lett. 99, 178001 (2007).

    Article  ADS  Google Scholar 

  9. Head, D. A. Critical scaling and aging in cooling systems near the jamming transition. Phys. Rev. Lett. 102, 138001 (2009).

    Article  ADS  Google Scholar 

  10. Wyart, M., Liang, H., Kabla, A. & Mahadevan, L. Elasticity of floppy and stiff random networks. Phys. Rev. Lett. 101, 215501 (2008).

    Article  ADS  Google Scholar 

  11. Ellenbroek, W. G., Zeravcic, Z., van Saarloos, W. & van Hecke, M. Non-affine response: jammed packings versus spring networks. Europhys. Lett. 87, 34004 (2009).

    Article  ADS  Google Scholar 

  12. Broedersz, C. P., Mao, X., Lubensky, T. C. & MacKintosh, F. C. Criticality and isostaticity in fibre networks. Nature Phys. 7, 983–988 (2011).

    Article  ADS  Google Scholar 

  13. Sheinman, M., Broedersz, C. P. & MacKintosh, F. C. Nonlinear effective-medium theory of disordered spring networks. Phys. Rev. E 85, 021801 (2012).

    Article  ADS  Google Scholar 

  14. Lindström, S. B., Vader, D. A., Kulachenko, A. & Weitz, D. A. Biopolymer network geometries: characterization, regeneration, and elastic properties. Phys. Rev. E 82, 051905 (2010).

    Article  ADS  Google Scholar 

  15. Licup, A. J. et al. Stress controls the mechanics of collagen networks. Proc. Natl Acad. Sci. USA 112, 9573–9578 (2015).

    Article  ADS  Google Scholar 

  16. Head, D. A., Levine, A. J. & MacKintosh, F. C. Deformation of crosslinked semiflexible polymer networks. Phys. Rev. Lett. 91, 108102 (2003).

    Article  ADS  Google Scholar 

  17. Wilhelm, J. & Frey, E. Elasticity of stiff polymer networks. Phys. Rev. Lett. 91, 108103 (2003).

    Article  ADS  Google Scholar 

  18. Alexander, S. Amorphous solids: their structure, lattice dynamics and elasticity. Phys. Rep. 296, 65–236 (1998).

    Article  ADS  Google Scholar 

  19. Fratzl, P. Collagen: Structure and Mechanics (Springer Science & Business Media, 2008).

    Book  Google Scholar 

  20. Broedersz, C. P. & MacKintosh, F. C. Molecular motors stiffen non-affine semiflexible polymer networks. Soft Matter 7, 3186–3191 (2011).

    Article  ADS  Google Scholar 

  21. Broedersz, C. P., Sheinman, M. & MacKintosh, F. C. Filament-length-controlled elasticity in 3d fiber networks. Phys. Rev. Lett. 108, 078102 (2012).

    Article  ADS  Google Scholar 

  22. Conti, E. & MacKintosh, F. C. Cross-linked networks of stiff filaments exhibit negative normal stress. Phys. Rev. Lett. 102, 088102 (2009).

    Article  ADS  Google Scholar 

  23. Straley, J. P. Critical phenomena in resistor networks. J. Phys. C 9, 783–795 (1976).

    Article  ADS  Google Scholar 

  24. Achilli, M. & Mantovani, D. Tailoring mechanical properties of collagen-based scaffolds for vascular tissue engineering: the effects of ph, temperature and ionic strength on gelation. Polymers 2, 664–680 (2010).

    Article  Google Scholar 

  25. Motte, S. & Kaufman, L. J. Strain stiffening in collagen I networks. Biopolymers 99, 35–46 (2013).

    Article  Google Scholar 

  26. Arevalo, R. C., Kumar, P., Urbach, J. S. & Blair, D. L. Stress heterogeneities in sheared type-I collagen networks revealed by boundary stress microscopy. PLoS ONE 10, e011802 (2015).

    Article  Google Scholar 

  27. Arrott, A. & Noakes, J. E. Approximate equation of state for nickel near its critical temperature. Phys. Rev. Lett. 19, 786–789 (1967).

    Article  ADS  Google Scholar 

  28. Kane, C. & Lubensky, T. Topological boundary modes in isostatic lattices. Nature Phys. 10, 39–45 (2014).

    Article  ADS  Google Scholar 

  29. Feng, J., Levine, H., Mao, X. & Sander, L. M. Alignment and nonlinear elasticity in biopolymer gels. Phys. Rev. E 91, 042710 (2015).

    Article  ADS  Google Scholar 

  30. Arevalo, R. C., Urbach, J. S. & Blair, D. L. Size-dependent rheology of type-I collagen networks. Biophys. J. 99, L65–L67 (2010).

    Article  Google Scholar 

  31. Head, D. A., Levine, A. J. & MacKintosh, F. C. Distinct regimes of elastic response and deformation modes of cross-linked cytoskeletal and semiflexible polymer networks. Phys. Rev. E 68, 061907 (2003).

    Article  ADS  Google Scholar 

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Acknowledgements

We thank M. Vahabi for useful discussions. This work was carried out on the Dutch national e-infrastructure with the support of SURF Cooperative. This work is part of the research programme of the Foundation for Fundamental Research on Matter (FOM), which is financially supported by the Netherlands Organisation for Scientific Research (NWO). This work is further supported by NanoNextNL, a micro and nanotechnology programme of the Dutch Government and 130 partners.

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A.S., A.J.L. and K.A.J. contributed equally to the work. A.S., A.J.L., R.R., M.S. and F.C.M. conceived and developed the model and simulations. A.S., A.J.L., R.R. and M.S. performed the simulations. K.A.J. and G.H.K. designed the experiments. K.A.J. performed the experiments. All authors contributed to the writing of the paper.

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Correspondence to G. H. Koenderink or F. C. MacKintosh.

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The authors declare no competing financial interests.

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Sharma, A., Licup, A., Jansen, K. et al. Strain-controlled criticality governs the nonlinear mechanics of fibre networks. Nature Phys 12, 584–587 (2016). https://doi.org/10.1038/nphys3628

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